Annotation of mandoc/roff.c, Revision 1.17
1.17 ! kristaps 1: /* $Id: roff.c,v 1.16 2008/11/28 18:15:29 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
1.12 kristaps 22: #include <stdarg.h>
1.1 kristaps 23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26: #include <time.h>
27:
28: #include "libmdocml.h"
29: #include "private.h"
30:
1.6 kristaps 31: /* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
32:
1.7 kristaps 33: /* FIXME: warn about "X section only" macros. */
34:
1.6 kristaps 35: /* FIXME: warn about empty lists. */
36:
1.7 kristaps 37: /* FIXME: ; : } ) (etc.) after text macros? */
38:
1.11 kristaps 39: /* FIXME: NAME section needs specific elements. */
40:
41: #define ROFF_MAXARG 32
1.1 kristaps 42:
43: enum roffd {
44: ROFF_ENTER = 0,
45: ROFF_EXIT
46: };
47:
48: enum rofftype {
49: ROFF_COMMENT,
50: ROFF_TEXT,
1.11 kristaps 51: ROFF_LAYOUT,
52: ROFF_SPECIAL
1.1 kristaps 53: };
54:
55: #define ROFFCALL_ARGS \
1.2 kristaps 56: int tok, struct rofftree *tree, \
57: const char *argv[], enum roffd type
1.1 kristaps 58:
59: struct rofftree;
60:
61: struct rofftok {
1.5 kristaps 62: int (*cb)(ROFFCALL_ARGS); /* Callback. */
63: const int *args; /* Args (or NULL). */
1.6 kristaps 64: const int *parents;
65: const int *children;
66: int ctx;
1.5 kristaps 67: enum rofftype type; /* Type of macro. */
1.1 kristaps 68: int flags;
1.7 kristaps 69: #define ROFF_PARSED (1 << 0) /* "Parsed". */
70: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
71: #define ROFF_QUOTES (1 << 2) /* Quoted args. */
1.10 kristaps 72: #define ROFF_SHALLOW (1 << 3) /* Nesting block. */
1.1 kristaps 73: };
74:
75: struct roffarg {
76: int flags;
1.5 kristaps 77: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 78: };
79:
80: struct roffnode {
1.5 kristaps 81: int tok; /* Token id. */
82: struct roffnode *parent; /* Parent (or NULL). */
1.1 kristaps 83: };
84:
85: struct rofftree {
1.5 kristaps 86: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 87: char *cur;
88:
1.5 kristaps 89: time_t date; /* `Dd' results. */
90: char os[64]; /* `Os' results. */
91: char title[64]; /* `Dt' results. */
92: char section[64]; /* `Dt' results. */
93: char volume[64]; /* `Dt' results. */
1.14 kristaps 94:
1.1 kristaps 95: int state;
1.5 kristaps 96: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
97: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
98: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
99: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
100: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 101:
1.15 kristaps 102: struct roffcb cb;
103: void *arg;
1.1 kristaps 104: };
105:
106: static int roff_Dd(ROFFCALL_ARGS);
107: static int roff_Dt(ROFFCALL_ARGS);
108: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 109:
1.2 kristaps 110: static int roff_layout(ROFFCALL_ARGS);
111: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 112: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 113: static int roff_close(ROFFCALL_ARGS);
1.11 kristaps 114: static int roff_special(ROFFCALL_ARGS);
1.1 kristaps 115:
1.4 kristaps 116: static struct roffnode *roffnode_new(int, struct rofftree *);
1.15 kristaps 117: static void roffnode_free(struct rofftree *);
1.1 kristaps 118:
1.12 kristaps 119: static void roff_warn(const struct rofftree *,
120: const char *, char *, ...);
121: static void roff_err(const struct rofftree *,
122: const char *, char *, ...);
123:
1.7 kristaps 124: static int roffscan(int, const int *);
1.1 kristaps 125: static int rofffindtok(const char *);
126: static int rofffindarg(const char *);
1.2 kristaps 127: static int rofffindcallable(const char *);
1.10 kristaps 128: static int roffargs(const struct rofftree *,
129: int, char *, char **);
1.5 kristaps 130: static int roffargok(int, int);
1.12 kristaps 131: static int roffnextopt(const struct rofftree *,
132: int, const char ***, char **);
1.17 ! kristaps 133: static int roffparse(struct rofftree *, char *);
! 134: static int textparse(const struct rofftree *, char *);
1.1 kristaps 135:
1.6 kristaps 136:
1.7 kristaps 137: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
138: ROFF_ARGMAX };
139: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 140: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
141: ROFF_Compact, ROFF_ARGMAX };
142: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 143: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
144: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
145: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
146: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
147: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 148: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 149: static const int roffarg_St[] = {
150: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
151: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
152: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
153: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
154: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
155: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
156: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
157: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
158: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
159: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
160: ROFF_ARGMAX };
1.5 kristaps 161:
1.6 kristaps 162: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 163: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 164: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 165: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
166: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
167: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 168:
169: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 170: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
171: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 172: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 173: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 174:
1.5 kristaps 175: /* Table of all known tokens. */
1.14 kristaps 176: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 177: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
178: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
179: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
180: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 181: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
182: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
183: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 184: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
185: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 186: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 187: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 188: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 189: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 190: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 191: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
192: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
193: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
199: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 211: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 213: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 214: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
216: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 234: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.6 kristaps 236: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 239: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 244: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 249: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
250: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 253: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 254: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 259: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 261: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
262: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 263: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
264: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 265: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 266: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 271: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
272: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 273: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 274: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 275: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 276: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 277: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 278: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 279: };
1.1 kristaps 280:
1.5 kristaps 281: /* Table of all known token arguments. */
1.14 kristaps 282: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 283: 0, 0, 0, 0,
284: 0, ROFF_VALUE, ROFF_VALUE, 0,
285: 0, 0, 0, 0,
286: 0, 0, 0, 0,
287: 0, 0, 0, 0,
288: 0, 0, 0, 0,
289: 0, 0, 0, 0,
290: 0, 0, 0, 0,
291: 0, 0, 0, 0,
292: 0, 0, 0, 0,
293: 0, 0, 0, 0,
294: 0, 0, 0, 0,
295: 0, 0, 0, 0,
296: 0, 0, 0, 0,
297: 0, 0, 0, 0,
298: };
1.1 kristaps 299:
1.14 kristaps 300: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 301: "\\\"", "Dd", "Dt", "Os",
302: "Sh", "Ss", "Pp", "D1",
303: "Dl", "Bd", "Ed", "Bl",
304: "El", "It", "Ad", "An",
305: "Ar", "Cd", "Cm", "Dv",
306: "Er", "Ev", "Ex", "Fa",
307: "Fd", "Fl", "Fn", "Ft",
308: "Ic", "In", "Li", "Nd",
309: "Nm", "Op", "Ot", "Pa",
310: "Rv", "St", "Va", "Vt",
311: "Xr", "\%A", "\%B", "\%D",
312: "\%I", "\%J", "\%N", "\%O",
313: "\%P", "\%R", "\%T", "\%V",
314: "Ac", "Ao", "Aq", "At",
315: "Bc", "Bf", "Bo", "Bq",
316: "Bsx", "Bx", "Db", "Dc",
317: "Do", "Dq", "Ec", "Ef",
318: "Em", "Eo", "Fx", "Ms",
319: "No", "Ns", "Nx", "Ox",
320: "Pc", "Pf", "Po", "Pq",
321: "Qc", "Ql", "Qo", "Qq",
322: "Re", "Rs", "Sc", "So",
323: "Sq", "Sm", "Sx", "Sy",
324: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 325: "Fo", "Fc", "Oo", "Oc",
326: "Bk", "Ek",
1.5 kristaps 327: };
328:
1.14 kristaps 329: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 330: "split", "nosplit", "ragged",
331: "unfilled", "literal", "file",
332: "offset", "bullet", "dash",
333: "hyphen", "item", "enum",
334: "tag", "diag", "hang",
335: "ohang", "inset", "column",
336: "width", "compact", "std",
337: "p1003.1-88", "p1003.1-90", "p1003.1-96",
338: "p1003.1-2001", "p1003.1-2004", "p1003.1",
339: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
340: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
341: "p1003.2", "p1387.2", "isoC-90",
342: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
343: "isoC-99", "ansiC", "ansiC-89",
344: "ansiC-99", "ieee754", "iso8802-3",
345: "xpg3", "xpg4", "xpg4.2",
346: "xpg4.3", "xbd5", "xcu5",
347: "xsh5", "xns5", "xns5.2d2.0",
348: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 349: "svid4", "filled", "words",
1.5 kristaps 350: };
351:
352: const char *const *toknames = toknamesp;
353: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 354:
1.1 kristaps 355:
356: int
357: roff_free(struct rofftree *tree, int flush)
358: {
1.16 kristaps 359: int error, t;
1.15 kristaps 360: struct roffnode *n;
1.1 kristaps 361:
1.17 ! kristaps 362: error = 0;
! 363:
1.16 kristaps 364: if ( ! flush)
365: goto end;
1.1 kristaps 366:
1.16 kristaps 367: error = 1;
1.1 kristaps 368:
1.16 kristaps 369: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 370: roff_warn(tree, NULL, "prelude never finished");
1.16 kristaps 371: goto end;
372: }
373:
374: for (n = tree->last; n->parent; n = n->parent) {
375: if (0 != tokens[n->tok].ctx)
1.17 ! kristaps 376: continue;
1.16 kristaps 377: roff_warn(tree, NULL, "closing explicit scope `%s'",
378: toknames[n->tok]);
379: goto end;
380: }
381:
382: while (tree->last) {
383: t = tree->last->tok;
384: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
385: goto end;
1.1 kristaps 386: }
387:
1.17 ! kristaps 388: if ( ! (*tree->cb.rofftail)(tree->arg))
1.16 kristaps 389: goto end;
390:
391: error = 0;
392:
393: end:
394:
1.15 kristaps 395: while (tree->last)
396: roffnode_free(tree);
397:
1.1 kristaps 398: free(tree);
1.17 ! kristaps 399:
1.1 kristaps 400: return(error ? 0 : 1);
401: }
402:
403:
404: struct rofftree *
1.15 kristaps 405: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 406: {
407: struct rofftree *tree;
408:
1.17 ! kristaps 409: assert(args);
! 410: assert(cb);
! 411:
1.12 kristaps 412: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
413: err(1, "calloc");
1.1 kristaps 414:
415: tree->state = ROFF_PRELUDE;
1.15 kristaps 416: tree->arg = args;
417:
418: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 419:
1.16 kristaps 420: if ( ! (*tree->cb.roffhead)(args)) {
421: free(tree);
422: return(NULL);
423: }
424:
1.1 kristaps 425: return(tree);
426: }
427:
428:
429: int
1.17 ! kristaps 430: roff_engine(struct rofftree *tree, char *buf)
1.1 kristaps 431: {
432:
1.17 ! kristaps 433: tree->cur = buf;
! 434: assert(buf);
1.12 kristaps 435:
1.17 ! kristaps 436: if (0 == *buf) {
1.12 kristaps 437: roff_warn(tree, buf, "blank line");
1.1 kristaps 438: return(0);
439: } else if ('.' != *buf)
1.17 ! kristaps 440: return(textparse(tree, buf));
1.1 kristaps 441:
1.17 ! kristaps 442: return(roffparse(tree, buf));
1.1 kristaps 443: }
444:
445:
446: static int
1.17 ! kristaps 447: textparse(const struct rofftree *tree, char *buf)
1.1 kristaps 448: {
1.17 ! kristaps 449:
! 450: return((*tree->cb.roffdata)(tree->arg, buf));
1.1 kristaps 451: }
452:
453:
454: static int
1.10 kristaps 455: roffargs(const struct rofftree *tree,
456: int tok, char *buf, char **argv)
1.1 kristaps 457: {
458: int i;
1.12 kristaps 459: char *p;
1.1 kristaps 460:
461: assert(tok >= 0 && tok < ROFF_MAX);
462: assert('.' == *buf);
463:
1.12 kristaps 464: p = buf;
465:
1.1 kristaps 466: /* LINTED */
467: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 468: if ('\"' == *buf) {
469: argv[i] = ++buf;
470: while (*buf && '\"' != *buf)
471: buf++;
472: if (0 == *buf) {
1.13 kristaps 473: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 474: "quote in argument "
475: "list for `%s'",
476: toknames[tok]);
1.10 kristaps 477: return(0);
478: }
479: } else {
480: argv[i] = buf++;
481: while (*buf && ! isspace(*buf))
482: buf++;
483: if (0 == *buf)
484: continue;
1.1 kristaps 485: }
486: *buf++ = 0;
487: while (*buf && isspace(*buf))
488: buf++;
489: }
490:
491: assert(i > 0);
1.10 kristaps 492: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 493: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 494: [tok]);
1.10 kristaps 495: return(0);
496: }
497:
498: argv[i] = NULL;
499: return(1);
1.1 kristaps 500: }
501:
502:
1.6 kristaps 503: /* XXX */
504: static int
505: roffscan(int tok, const int *tokv)
506: {
1.7 kristaps 507:
1.6 kristaps 508: if (NULL == tokv)
509: return(1);
510:
1.7 kristaps 511: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 512: if (tok == *tokv)
513: return(1);
514:
515: return(0);
516: }
517:
518:
1.1 kristaps 519: static int
1.17 ! kristaps 520: roffparse(struct rofftree *tree, char *buf)
1.1 kristaps 521: {
522: int tok, t;
1.6 kristaps 523: struct roffnode *n;
1.1 kristaps 524: char *argv[ROFF_MAXARG];
525: const char **argvp;
526:
1.6 kristaps 527: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 528: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 529: return(0);
530: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 531: roff_err(tree, buf + 1, "unsupported macro `%s'",
532: toknames[tok]);
1.1 kristaps 533: return(0);
1.6 kristaps 534: } else if (ROFF_COMMENT == tokens[tok].type)
535: return(1);
1.5 kristaps 536:
1.10 kristaps 537: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 538: return(0);
1.12 kristaps 539:
540: argvp = (const char **)argv;
1.6 kristaps 541:
542: /*
1.12 kristaps 543: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 544: */
1.1 kristaps 545:
1.6 kristaps 546: if (ROFF_PRELUDE & tree->state) {
547: assert(NULL == tree->last);
548: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
549: } else
550: assert(tree->last);
551:
552: assert(ROFF_BODY & tree->state);
553:
554: /*
555: * First check that our possible parents and parent's possible
556: * children are satisfied.
557: */
558:
559: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 560: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
561: toknames[tok],
562: toknames[tree->last->tok]);
1.6 kristaps 563: return(0);
564: }
565:
566: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.15 kristaps 567: roff_err(tree, *argvp, "`%s' is invalid child `%s'",
568: toknames[tree->last->tok],
569: toknames[tok]);
1.1 kristaps 570: return(0);
571: }
572:
573: /*
1.6 kristaps 574: * Branch if we're not a layout token.
1.1 kristaps 575: */
576:
1.6 kristaps 577: if (ROFF_LAYOUT != tokens[tok].type)
578: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 579:
1.6 kristaps 580: /*
581: * Check our scope rules.
582: */
1.1 kristaps 583:
1.6 kristaps 584: if (0 == tokens[tok].ctx)
585: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 586:
1.12 kristaps 587: /*
588: * First consider implicit-end tags, like as follows:
589: * .Sh SECTION 1
590: * .Sh SECTION 2
591: * In this, we want to close the scope of the NAME section. If
592: * there's an intermediary implicit-end tag, such as
593: * .Sh SECTION 1
594: * .Ss Subsection 1
595: * .Sh SECTION 2
596: * then it must be closed as well.
597: */
598:
1.6 kristaps 599: if (tok == tokens[tok].ctx) {
1.12 kristaps 600: /*
601: * First search up to the point where we must close.
602: * If one doesn't exist, then we can open a new scope.
603: */
604:
1.6 kristaps 605: for (n = tree->last; n; n = n->parent) {
606: assert(0 == tokens[n->tok].ctx ||
607: n->tok == tokens[n->tok].ctx);
608: if (n->tok == tok)
609: break;
1.10 kristaps 610: if (ROFF_SHALLOW & tokens[tok].flags) {
611: n = NULL;
612: break;
613: }
1.6 kristaps 614: }
1.10 kristaps 615:
616: /*
617: * Create a new scope, as no previous one exists to
618: * close out.
619: */
1.12 kristaps 620:
621: if (NULL == n)
1.6 kristaps 622: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 623:
624: /*
1.12 kristaps 625: * Close out all intermediary scoped blocks, then hang
626: * the current scope from our predecessor's parent.
1.10 kristaps 627: */
628:
1.1 kristaps 629: do {
630: t = tree->last->tok;
1.6 kristaps 631: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 632: return(0);
633: } while (t != tok);
1.6 kristaps 634:
635: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 636: }
637:
1.12 kristaps 638: /*
639: * Now consider explicit-end tags, where we want to close back
640: * to a specific tag. Example:
641: * .Bl
642: * .It Item.
643: * .El
644: * In this, the `El' tag closes out the scope of `Bl'.
645: */
646:
1.9 kristaps 647: assert(tree->last);
1.6 kristaps 648: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
649:
1.14 kristaps 650: /* LINTED */
1.6 kristaps 651: do {
652: t = tree->last->tok;
653: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
654: return(0);
655: } while (t != tokens[tok].ctx);
1.1 kristaps 656:
1.9 kristaps 657: assert(tree->last);
658: return(1);
1.1 kristaps 659: }
660:
661:
662: static int
663: rofffindarg(const char *name)
664: {
665: size_t i;
666:
667: /* FIXME: use a table, this is slow but ok for now. */
668:
669: /* LINTED */
670: for (i = 0; i < ROFF_ARGMAX; i++)
671: /* LINTED */
1.4 kristaps 672: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 673: return((int)i);
674:
675: return(ROFF_ARGMAX);
676: }
677:
678:
679: static int
1.6 kristaps 680: rofffindtok(const char *buf)
1.1 kristaps 681: {
1.6 kristaps 682: char token[4];
1.1 kristaps 683: size_t i;
684:
1.6 kristaps 685: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
686: token[i] = *buf;
687:
1.9 kristaps 688: if (i == 3)
1.6 kristaps 689: return(ROFF_MAX);
690:
691: token[i] = 0;
692:
1.1 kristaps 693: /* FIXME: use a table, this is slow but ok for now. */
694:
695: /* LINTED */
696: for (i = 0; i < ROFF_MAX; i++)
697: /* LINTED */
1.12 kristaps 698: if (0 == strcmp(toknames[i], token))
1.1 kristaps 699: return((int)i);
1.7 kristaps 700:
1.1 kristaps 701: return(ROFF_MAX);
702: }
703:
704:
1.2 kristaps 705: static int
706: rofffindcallable(const char *name)
707: {
708: int c;
709:
710: if (ROFF_MAX == (c = rofffindtok(name)))
711: return(ROFF_MAX);
1.8 kristaps 712: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 713: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
714: }
715:
716:
1.1 kristaps 717: static struct roffnode *
1.4 kristaps 718: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 719: {
720: struct roffnode *p;
721:
1.12 kristaps 722: if (NULL == (p = malloc(sizeof(struct roffnode))))
723: err(1, "malloc");
1.1 kristaps 724:
725: p->tok = tokid;
726: p->parent = tree->last;
727: tree->last = p;
1.9 kristaps 728:
1.1 kristaps 729: return(p);
730: }
731:
732:
1.5 kristaps 733: static int
734: roffargok(int tokid, int argid)
735: {
736: const int *c;
737:
738: if (NULL == (c = tokens[tokid].args))
739: return(0);
740:
741: for ( ; ROFF_ARGMAX != *c; c++)
742: if (argid == *c)
743: return(1);
744:
745: return(0);
746: }
747:
748:
1.1 kristaps 749: static void
1.15 kristaps 750: roffnode_free(struct rofftree *tree)
1.1 kristaps 751: {
752: struct roffnode *p;
753:
754: assert(tree->last);
755:
756: p = tree->last;
757: tree->last = tree->last->parent;
758: free(p);
759: }
760:
761:
1.6 kristaps 762: static int
1.12 kristaps 763: roffnextopt(const struct rofftree *tree, int tok,
764: const char ***in, char **val)
1.6 kristaps 765: {
766: const char *arg, **argv;
767: int v;
768:
769: *val = NULL;
770: argv = *in;
771: assert(argv);
772:
773: if (NULL == (arg = *argv))
774: return(-1);
775: if ('-' != *arg)
776: return(-1);
777:
1.12 kristaps 778: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
779: roff_warn(tree, arg, "argument-like parameter `%s' to "
780: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 781: return(-1);
1.12 kristaps 782: }
783:
784: if ( ! roffargok(tok, v)) {
785: roff_warn(tree, arg, "invalid argument parameter `%s' to "
786: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 787: return(-1);
1.12 kristaps 788: }
789:
790: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 791: return(v);
792:
793: *in = ++argv;
794:
1.12 kristaps 795: if (NULL == *argv) {
796: roff_err(tree, arg, "empty value of `%s' for `%s'",
797: tokargnames[v], toknames[tok]);
798: return(ROFF_ARGMAX);
799: }
1.6 kristaps 800:
1.12 kristaps 801: return(v);
1.6 kristaps 802: }
803:
804:
1.1 kristaps 805: /* ARGSUSED */
806: static int
807: roff_Dd(ROFFCALL_ARGS)
808: {
809:
1.4 kristaps 810: if (ROFF_BODY & tree->state) {
811: assert( ! (ROFF_PRELUDE & tree->state));
812: assert(ROFF_PRELUDE_Dd & tree->state);
813: return(roff_text(tok, tree, argv, type));
814: }
815:
1.1 kristaps 816: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 817: assert( ! (ROFF_BODY & tree->state));
818:
1.6 kristaps 819: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 820: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 821: return(0);
822: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 823: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 824: return(0);
825: }
826:
1.4 kristaps 827: /* TODO: parse date. */
828:
1.1 kristaps 829: assert(NULL == tree->last);
830: tree->state |= ROFF_PRELUDE_Dd;
831:
832: return(1);
833: }
834:
835:
836: /* ARGSUSED */
837: static int
838: roff_Dt(ROFFCALL_ARGS)
839: {
840:
1.4 kristaps 841: if (ROFF_BODY & tree->state) {
842: assert( ! (ROFF_PRELUDE & tree->state));
843: assert(ROFF_PRELUDE_Dt & tree->state);
844: return(roff_text(tok, tree, argv, type));
845: }
846:
1.1 kristaps 847: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 848: assert( ! (ROFF_BODY & tree->state));
849:
1.6 kristaps 850: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 851: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 852: return(0);
1.6 kristaps 853: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 854: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 855: return(0);
1.1 kristaps 856: }
857:
1.4 kristaps 858: /* TODO: parse date. */
859:
1.1 kristaps 860: assert(NULL == tree->last);
861: tree->state |= ROFF_PRELUDE_Dt;
862:
863: return(1);
864: }
865:
866:
867: /* ARGSUSED */
868: static int
869: roff_Os(ROFFCALL_ARGS)
870: {
871:
872: if (ROFF_EXIT == type) {
1.4 kristaps 873: assert(ROFF_PRELUDE_Os & tree->state);
874: return(roff_layout(tok, tree, argv, type));
875: } else if (ROFF_BODY & tree->state) {
876: assert( ! (ROFF_PRELUDE & tree->state));
877: assert(ROFF_PRELUDE_Os & tree->state);
878: return(roff_text(tok, tree, argv, type));
879: }
1.1 kristaps 880:
881: assert(ROFF_PRELUDE & tree->state);
882: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
883: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 884: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 885: return(0);
886: }
887:
1.4 kristaps 888: /* TODO: extract OS. */
1.1 kristaps 889:
890: tree->state |= ROFF_PRELUDE_Os;
891: tree->state &= ~ROFF_PRELUDE;
892: tree->state |= ROFF_BODY;
893:
1.4 kristaps 894: assert(NULL == tree->last);
895:
896: return(roff_layout(tok, tree, argv, type));
1.1 kristaps 897: }
898:
899:
900: /* ARGSUSED */
901: static int
1.2 kristaps 902: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 903: {
1.2 kristaps 904: int i, c, argcp[ROFF_MAXARG];
905: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 906:
1.4 kristaps 907: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 908: roff_err(tree, *argv, "`%s' disallowed in prelude",
909: toknames[tok]);
1.4 kristaps 910: return(0);
911: }
912:
1.2 kristaps 913: if (ROFF_EXIT == type) {
1.15 kristaps 914: roffnode_free(tree);
915: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 916: }
1.1 kristaps 917:
1.2 kristaps 918: i = 0;
1.12 kristaps 919: argv++;
1.5 kristaps 920:
1.12 kristaps 921: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
922: if (ROFF_ARGMAX == c)
1.5 kristaps 923: return(0);
1.12 kristaps 924:
1.2 kristaps 925: argcp[i] = c;
926: argvp[i] = v;
1.5 kristaps 927: i++;
1.1 kristaps 928: argv++;
929: }
930:
1.5 kristaps 931: argcp[i] = ROFF_ARGMAX;
932: argvp[i] = NULL;
933:
1.4 kristaps 934: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 935: return(0);
936:
1.15 kristaps 937: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 938: return(0);
939:
940: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 941: while (*argv) {
1.15 kristaps 942: if ( ! (*tree->cb.roffdata)
943: (tree->arg, *argv++))
1.14 kristaps 944: return(0);
945: }
1.12 kristaps 946:
1.15 kristaps 947: if ( ! ((*tree->cb.roffout)(tree->arg, tok)))
1.2 kristaps 948: return(0);
1.15 kristaps 949: return((*tree->cb.roffblkin)(tree->arg, tok));
1.2 kristaps 950: }
951:
1.1 kristaps 952: while (*argv) {
1.8 kristaps 953: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
954: if (NULL == tokens[c].cb) {
1.12 kristaps 955: roff_err(tree, *argv, "unsupported "
956: "macro `%s'",
957: toknames[c]);
1.8 kristaps 958: return(0);
959: }
1.14 kristaps 960: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 961: return(0);
1.14 kristaps 962: break;
1.8 kristaps 963: }
1.12 kristaps 964:
1.17 ! kristaps 965: assert(tree->arg);
1.15 kristaps 966: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 967: return(0);
968: }
1.12 kristaps 969:
1.15 kristaps 970: if ( ! ((*tree->cb.roffout)(tree->arg, tok)))
1.2 kristaps 971: return(0);
1.15 kristaps 972: return((*tree->cb.roffblkin)(tree->arg, tok));
1.2 kristaps 973: }
974:
975:
976: /* ARGSUSED */
977: static int
978: roff_text(ROFFCALL_ARGS)
979: {
980: int i, c, argcp[ROFF_MAXARG];
981: char *v, *argvp[ROFF_MAXARG];
982:
1.4 kristaps 983: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 984: roff_err(tree, *argv, "`%s' disallowed in prelude",
985: toknames[tok]);
1.4 kristaps 986: return(0);
987: }
988:
1.2 kristaps 989: i = 0;
1.12 kristaps 990: argv++;
1.5 kristaps 991:
1.12 kristaps 992: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
993: if (ROFF_ARGMAX == c)
1.2 kristaps 994: return(0);
1.12 kristaps 995:
1.2 kristaps 996: argcp[i] = c;
997: argvp[i] = v;
1.5 kristaps 998: i++;
1.1 kristaps 999: argv++;
1000: }
1001:
1.5 kristaps 1002: argcp[i] = ROFF_ARGMAX;
1003: argvp[i] = NULL;
1004:
1.15 kristaps 1005: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1006: return(0);
1.1 kristaps 1007:
1.2 kristaps 1008: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 1009: while (*argv) {
1.15 kristaps 1010: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1011: return(0);
1012: }
1.15 kristaps 1013: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1014: }
1.1 kristaps 1015:
1.2 kristaps 1016: while (*argv) {
1.8 kristaps 1017: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1018: if (NULL == tokens[c].cb) {
1.12 kristaps 1019: roff_err(tree, *argv, "unsupported "
1020: "macro `%s'",
1021: toknames[c]);
1.8 kristaps 1022: return(0);
1023: }
1.2 kristaps 1024: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1025: argv, ROFF_ENTER))
1.2 kristaps 1026: return(0);
1.14 kristaps 1027: break;
1.8 kristaps 1028: }
1.15 kristaps 1029: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1030: return(0);
1031: }
1.12 kristaps 1032:
1.15 kristaps 1033: return((*tree->cb.roffout)(tree->arg, tok));
1.6 kristaps 1034: }
1035:
1036:
1.9 kristaps 1037: /* ARGSUSED */
1.6 kristaps 1038: static int
1039: roff_comment(ROFFCALL_ARGS)
1040: {
1041:
1042: return(1);
1.1 kristaps 1043: }
1.9 kristaps 1044:
1045:
1046: /* ARGSUSED */
1047: static int
1048: roff_close(ROFFCALL_ARGS)
1049: {
1050:
1051: return(1);
1052: }
1.11 kristaps 1053:
1054:
1055: /* ARGSUSED */
1056: static int
1057: roff_special(ROFFCALL_ARGS)
1058: {
1059:
1.15 kristaps 1060: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1061: }
1.12 kristaps 1062:
1063:
1064: static void
1065: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1066: {
1067: va_list ap;
1068: char buf[128];
1069:
1070: va_start(ap, fmt);
1071: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1072: va_end(ap);
1073:
1.15 kristaps 1074: (*tree->cb.roffmsg)(tree->arg,
1075: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1076: }
1077:
1078:
1079: static void
1080: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1081: {
1082: va_list ap;
1083: char buf[128];
1084:
1085: va_start(ap, fmt);
1086: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1087: va_end(ap);
1088:
1.15 kristaps 1089: (*tree->cb.roffmsg)(tree->arg,
1090: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1091: }
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